<script setup>
import {ref} from 'vue'
import {Plus, Upload} from "@element-plus/icons-vue"
import {useUserStore} from "@/stores"
import {userInfoUpdateAvatarService} from '@/api/user'
import {ElMessage} from "element-plus";

const store = useUserStore()
const imageUrl = ref(store.user.user_pic)
const uploadRef = ref()
const submitRef = ref()

// 从本地选了图片会回调这个钩子方法 给imgUrl设置base64格式
const preview = (uploadFile) => {
  const reader = new FileReader()
  reader.readAsDataURL(uploadFile.raw)
  reader.onloadend = () => {
    imageUrl.value = reader.result
  }
}

// 上传头像
const uploadAvatar = async () => {
  await userInfoUpdateAvatarService({avatar: imageUrl.value})
  await store.getUser()
  ElMessage.success('上传头像成功')
}

</script>

<template>
  <PageContainer title="更换头像">
    <el-upload
      ref="uploadRef"
      class="avatar-uploader"
      :show-file-list="false"
      :auto-upload="false"
      :on-change="preview"
    >
      <img v-if="imageUrl" :src="imageUrl" class="avatar" alt=""/>
      <el-icon v-else class="avatar-uploader-icon"><Plus /></el-icon>
    </el-upload>
    <br>
    <el-button @click="uploadRef.$el.querySelector('input').click()" type="primary" :icon="Plus" size="large">选择图片</el-button>
    <el-button ref="submitRef" @click="uploadAvatar" type="success" :icon="Upload" size="large">上传头像</el-button>
  </PageContainer>
</template>

<style lang="scss" scoped>
.avatar-uploader {
  :deep() {
    .avatar {
      width: 278px;
      height: 278px;
      display: block;
    }
    .el-upload {
      border: 1px dashed var(--el-border-color);
      border-radius: 6px;
      cursor: pointer;
      position: relative;
      overflow: hidden;
      transition: var(--el-transition-duration-fast);
    }
    .el-upload:hover {
      border-color: var(--el-color-primary);
    }
    .el-icon.avatar-uploader-icon {
      font-size: 28px;
      color: #8c939d;
      width: 278px;
      height: 278px;
      text-align: center;
    }
  }
}
</style>
